diff --git a/mujoco_maze/assets/ant.xml b/mujoco_maze/assets/ant.xml
index ac555ef..2dbf69c 100755
--- a/mujoco_maze/assets/ant.xml
+++ b/mujoco_maze/assets/ant.xml
@@ -11,7 +11,7 @@
   <asset>
     <texture type="skybox" builtin="gradient" width="100" height="100" rgb1="1 1 1" rgb2="0 0 0" />
     <texture name="texgeom" type="cube" builtin="flat" mark="cross" width="127" height="1278" rgb1="0.8 0.6 0.4" rgb2="0.8 0.6 0.4" markrgb="1 1 1" random="0.01" />
-    <texture name="texplane" type="2d" builtin="checker" rgb1="0 0 0" rgb2="0.8 0.8 0.8" width="100" height="100" />
+    <texture name="texplane" type="2d" builtin="checker" rgb1="0.2 0.3 0.4" rgb2="0.1 0.2 0.3" width="100" height="100" />
     <material name='MatPlane' texture="texplane" shininess="1" texrepeat="60 60" specular="1"  reflectance="0.5" />
     <material name='geom' texture="texgeom" texuniform="true" />
   </asset>
diff --git a/mujoco_maze/assets/point.xml b/mujoco_maze/assets/point.xml
index 578fce2..2a5a196 100755
--- a/mujoco_maze/assets/point.xml
+++ b/mujoco_maze/assets/point.xml
@@ -8,7 +8,7 @@
     <asset>
         <texture type="skybox" builtin="gradient" width="100" height="100" rgb1="1 1 1" rgb2="0 0 0" />
         <texture name="texgeom" type="cube" builtin="flat" mark="cross" width="127" height="1278" rgb1="0.8 0.6 0.4" rgb2="0.8 0.6 0.4" markrgb="1 1 1" random="0.01" />
-        <texture name="texplane" type="2d" builtin="checker" rgb1="0 0 0" rgb2="0.8 0.8 0.8" width="100" height="100" />
+        <texture name="texplane" type="2d" builtin="checker" rgb1="0.2 0.3 0.4" rgb2="0.1 0.2 0.3" width="100" height="100" />
         <material name="MatPlane" texture="texplane" shininess="1" texrepeat="30 30" specular="1"  reflectance="0.5" />
         <material name="geom" texture="texgeom" texuniform="true" />
     </asset>
diff --git a/mujoco_maze/assets/reacher.xml b/mujoco_maze/assets/reacher.xml
index f9acaeb..0d238c8 100644
--- a/mujoco_maze/assets/reacher.xml
+++ b/mujoco_maze/assets/reacher.xml
@@ -8,7 +8,7 @@
   <asset>
     <texture type="skybox" builtin="gradient" width="100" height="100" rgb1="1 1 1" rgb2="0 0 0" />
     <texture name="texgeom" type="cube" builtin="flat" mark="cross" width="127" height="1278" rgb1="0.8 0.6 0.4" rgb2="0.8 0.6 0.4" markrgb="1 1 1" random="0.01" />
-    <texture name="texplane" type="2d" builtin="checker" rgb1="0 0 0" rgb2="0.8 0.8 0.8" width="100" height="100" />
+    <texture name="texplane" type="2d" builtin="checker" rgb1="0.2 0.3 0.4" rgb2="0.1 0.2 0.3" width="100" height="100" />
     <material name='MatPlane' texture="texplane" shininess="1" texrepeat="60 60" specular="1"  reflectance="0.5" />
     <material name='geom' texture="texgeom" texuniform="true" />
   </asset>
diff --git a/mujoco_maze/assets/swimmer.xml b/mujoco_maze/assets/swimmer.xml
index b743d85..3c6c21a 100644
--- a/mujoco_maze/assets/swimmer.xml
+++ b/mujoco_maze/assets/swimmer.xml
@@ -8,7 +8,7 @@
   <asset>
     <texture type="skybox" builtin="gradient" width="100" height="100" rgb1="1 1 1" rgb2="0 0 0" />
     <texture name="texgeom" type="cube" builtin="flat" mark="cross" width="127" height="1278" rgb1="0.8 0.6 0.4" rgb2="0.8 0.6 0.4" markrgb="1 1 1" random="0.01" />
-    <texture name="texplane" type="2d" builtin="checker" rgb1="0 0 0" rgb2="0.8 0.8 0.8" width="100" height="100" />
+    <texture name="texplane" type="2d" builtin="checker" rgb1="0.2 0.3 0.4" rgb2="0.1 0.2 0.3" width="100" height="100" />
     <material name='MatPlane' texture="texplane" shininess="1" texrepeat="60 60" specular="1"  reflectance="0.5" />
     <material name='geom' texture="texgeom" texuniform="true" />
   </asset>